CN101688455B - Engine powered machine - Google Patents
Engine powered machine Download PDFInfo
- Publication number
- CN101688455B CN101688455B CN200880023203.5A CN200880023203A CN101688455B CN 101688455 B CN101688455 B CN 101688455B CN 200880023203 A CN200880023203 A CN 200880023203A CN 101688455 B CN101688455 B CN 101688455B
- Authority
- CN
- China
- Prior art keywords
- reducing agent
- temperature
- cooling medium
- engine cooling
- operator cabin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/20—Cooling circuits not specific to a single part of engine or machine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1486—Means to prevent the substance from freezing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/18—Parameters used for exhaust control or diagnosing said parameters being related to the system for adding a substance into the exhaust
- F01N2900/1806—Properties of reducing agent or dosing system
- F01N2900/1811—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
- F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
An engine powered machine that has a high performance exhaust purification device and in which the temperature in an operation room can be quickly raised to a comfortable temperature. [MEANS FOR SOLVING PROBLEMS] The exhaust purification device using a NOx removal catalyst (3) and a reducing agent has a reducing agent heating device (13) for heating the reducing agent, contained in a reducing agent tank (5), by using heat of an engine cooling medium and also has an opening/closing device (14) for controlling the introduction of the engine cooling medium into the reducing agent heating device (13). A controller (15) switches the opening/closing device (14) to a closed state when the temperature of the engine cooling medium is higher than a first predetermined temperature, the temperature of the reducing agent in the tank (5) is lower than a second predetermined temperature, and the temperature in the operation room (7) is lower than a third predetermined temperature, and by doing so, the controller (15) increases the amount of flow of the engine cooling medium led to a heat exchanger (8a) of a heating device (8). The construction can preferentially heat the operation chamber (7) in a cold weather to enhance the comfort of an operator.
Description
Technical field
The present invention relates to building machinery or automobile etc. is the machinery (engine powered machine) of power source with the motor, particularly has and utilizes denitrification catalyst and reducing agent nitrogen oxides from exhaust gas to be carried out the engine powered machine of purified waste gas purification plant.
Background technique
Waste gas cleaning plant as being installed on engine powered machine is well known that: it has the denitrification catalyst that is attached to outlet pipe; And reducer feeding device; This reducer feeding device is stored in the reducing agent in the reducing agent jar with respect to the position of setting up of this denitrification catalyst from the upstream side injection; In the presence of denitrification catalyst; Utilize reducing agent that nitrogen oxide is reduced processing selectively, nitrogen oxides from exhaust gas is resolved into harmless nitrogen G&W.In addition, as said reducing agent, use to become in outlet pipe, to add water decomposition to be light oil of main component etc. with urea water, ammonia spirit and the hydrocarbon of the reactive good ammonia (ammonia) of nitrogen oxide.
Reducing agent such as urea water, ammonia spirit can freeze at low temperatures, at high temperature can produce the ammonia with stench, therefore needs suitable temperature treatment under the state in being stored in the reducing agent jar.In the past; As being stored in the means that reducing agent in the reducing agent jar remains on proper temperature; Following structure has been proposed; It has: the reducing agent heating equipment, and it imports to engine cooling medium in the reducing agent jar, utilizes the heat of engine cooling medium that the reducing agent that is stored in the reducing agent jar is heated; And opening and closing device, it opens and closes the cooling medium runner that engine cooling medium is imported in this reducing agent heating equipment, when reducing agent freezes; Opening and closing device is switched to open mode, and the reducing agent that has utilized the heat of engine cooling medium to make to freeze melts, and has been warmed up at reducing agent under the situation of the predetermined temperature more than the thaw temperature; Opening and closing device is switched to closed condition; Cut off the inflow of heat energy, thereby prevent reducing agent overheated (for example, with reference to patent documentation 1).
Patent documentation 1: the spy opens the 2005-90431 communique
In addition; Carry out in the engine powered machine of machinery driving the driver who has operator cabin, take in operator cabin; Even in order to make that the driver also can carry out the driving of engine powered machine in comfortable driving environment when cold, the engine powered machine that has has the heating installation of heat to heating in the operator cabin that utilizes engine cooling medium.When the related waste gas cleaning plant of said known example is applied to the engine powered machine of this band heating installation; Engine cooling medium is imported under the situation in the reducing agent jar opening and closing device being switched to open mode; The amount that imports to the engine cooling medium in the heating installation reduces relatively, therefore, is difficult to make the operator cabin temperature to be warmed up to comfortable temperature rapidly; Therefore, the driver is compelled bears affliction for a long time.
The present invention is the invention that proposes in order to solve above-mentioned prior art problems, and its purpose is to provide a kind of to be had high performance waste gas cleaning plant and can make the operator cabin temperature be warmed up to the engine powered machine of comfort temperature rapidly.
Summary of the invention
In order to reach above-mentioned purpose, the present invention provides a kind of engine powered machine, and it possesses: denitrification catalyst, and the exhaust steam passage that it is attached to motor utilizes reducing agent that the nitrogen oxides from exhaust gas in the exhaust steam passage of flowing through is reduced processing selectively; The reducing agent jar, it stores reducing agent; Reducer feeding device, its injection of reducing agent that will be stored in the reducing agent jar is mapped in the exhaust steam passage; The reducing agent Temperature Detector, it detects the temperature that is stored in the reducing agent in the reducing agent jar; The reducing agent heating equipment, it utilizes the heat of engine cooling medium that the reducing agent that is stored in the reducing agent jar is heated; Opening and closing device, it opens and closes the cooling medium runner that engine cooling medium is imported in the reducing agent heating equipment; The coolant temperature detector, its temperature to engine cooling medium detects; Heating installation, its heat of utilizing engine cooling medium is to heating in the operator cabin; The operator cabin Temperature Detector, it detects the temperature in the operator cabin; And controller, the detected temperatures signal of exporting from said each Temperature Detector is imported into this controller, and this controller is controlled the driving of reducer feeding device, opening and closing device and heating installation,
Said engine powered machine is characterised in that,
Be lower than second predetermined temperature and be lower than under the situation of the 3rd predetermined temperature when the temperature through the detected engine cooling medium of said coolant temperature detector is higher than first predetermined temperature, temperature through the detected reducing agent of said reducing agent Temperature Detector through the temperature in the detected operator cabin of said operator cabin Temperature Detector; Said controller switches to closed condition with said opening and closing device; Thereby cut off the importing of engine cooling medium in said reducing agent heating equipment, increase the flow that imports to the engine cooling medium in the said heating installation.
According to this structure, when cold, can preferentially heat to operator cabin, therefore can eliminate driver's misery as early as possible, can improve the driver's who drives engine powered machine travelling comfort.In addition, the temperature in operator cabin has reached after the predetermined temperature, and through opening and closing device is switched to open mode, the reducing agent that can utilize the heat of engine cooling medium to make to freeze melts, and therefore can carry out the purification of engine exhaust.And, after the reducing agent temperature has reached the predetermined temperature more than the freezing temperature,, can stop the intensification of reducing agent through opening and closing device is switched to closed condition, therefore can prevent the generation of stench.
In the engine powered machine of the present invention; Be lower than second predetermined temperature and be lower than under the situation of the 3rd predetermined temperature when the temperature through the detected engine cooling medium of coolant temperature detector is higher than first predetermined temperature, temperature through the detected reducing agent of reducing agent Temperature Detector through the temperature in the detected operator cabin of operator cabin Temperature Detector; Opening and closing device is switched to closed condition; Thereby cut off the importing of engine cooling medium in the reducing agent heating equipment, increase the flow that imports to the engine cooling medium in the heating installation, therefore; When cold, can improve driver's travelling comfort preferentially to the operator cabin heating.In addition, have waste gas cleaning plant, this waste gas cleaning plant has the unit that the reducing agent temperature is remained on proper temperature, the reducing agent that has freezed is melted, and can prevent to produce stench by reducing agent.
Description of drawings
Fig. 1 is the pie graph of the engine powered machine that relates to of mode of execution.
Fig. 2 is the skeleton diagram of the formation of the controller that relates to of expression mode of execution.
Fig. 3 is the flow chart of the control step that adds Hot-air fan and opening and closing device that relates to of expression mode of execution.
Label declaration
1 motor
2 outlet pipes
3 denitrification catalysts
4 reducer feeding devices
5 reducing agent jars
6 reducing agent Temperature Detectors
7 operator cabins
8 heating installations
9 operator cabin Temperature Detectors
10 first engine cooling medium runners
11 second engine cooling medium runners
12 coolant temperature detectors
13 reducing agent heating equipments
14 opening and closing devices
15 controllers
Embodiment
Below, according to Fig. 1 to Fig. 3 a mode of execution of the engine powered machine that the present invention relates to being described, Fig. 1 is the pie graph of the engine powered machine that relates to of mode of execution; Fig. 2 is the skeleton diagram of the formation of the controller that relates to of expression mode of execution; Fig. 3 is the flow chart of the control step that adds Hot-air fan and opening and closing device that relates to of expression mode of execution.
As shown in Figure 1, in the engine powered machine of this example, have: as the motor 1 of power source of each one of machinery; Be attached to the denitrification catalyst 3 of the outlet pipe (exhaust steam passage) 2 of motor 1; Reducer feeding device 4, the reducing agent of its injection of NOx in the outlet pipe 2 of the upstream side of setting up the position of denitrification catalyst 3; Reducing agent jar 5, it stores the reducing agent that sprays through reducer feeding device 4; Reducing agent Temperature Detector 6, it detects the temperature that is stored in the reducing agent in the reducing agent jar 5; Operator cabin 7 is used for the pilot instrument of each one of machinery of comprising motor 1 is operated; Heating installation 8, it heats to operator cabin 7; Operator cabin Temperature Detector 9, it detects the temperature in the operator cabin 7; The first cooling medium runner 10, it is used in the part guiding reducing agent jar 5 with engine cooling medium; The second cooling medium runner 11, it is used for the remaining part guiding heating installation 8 with engine cooling medium; Coolant temperature detector 12, its temperature to engine cooling medium mobile in cooling medium runner 10,11 detects; Reducing agent heating equipment 13, its heat that is utilized in the engine cooling medium that flows in the first cooling medium runner 10 heats the reducing agent that is stored in the reducing agent jar 5; Opening and closing device 14, it opens and closes the first cooling medium runner 10; And controller 15; From the detected temperatures signal a of reducing agent Temperature Detector 6 output, be imported into this controller 15 drive signal d, the drive signal e of heating installation 8 and the drive signal f of opening and closing device 14 of these controller 15 output reducer feeding devices 4 from the detected temperatures signal b of operator cabin Temperature Detector 9 outputs and from the detected temperatures signal c of coolant temperature detector 12 outputs.
As shown in Figure 2, controller 15 is by constituting with the bottom: the input port 15a that receives detected temperatures signal a, b, c; The memory section 15b of first to the 3rd predetermined temperature that the storage hereinafter is put down in writing; Calculate the operational part 15c of drive signal d, e, f according to detected temperatures signal a, b, c and first to the 3rd predetermined temperature; And the output port 15d that will output to reducer feeding device 4, heating installation 8 and opening and closing device 14 respectively through drive signal d, e, the f that operational part 15c calculates.Here; First predetermined temperature and engine cooling medium temperature correlation; Make the driver uncomfortable for fear of in operator cabin 7, blowing out cold wind; This first predetermined temperature is set at the temperature higher than the setting temperature of operator cabin 7, and for example the setting temperature at operator cabin 7 is under the situation of+25 degree, and this first predetermined temperature is set at+30 degree.In addition, the second and the 4th predetermined temperature is and the temperature of reducing agent temperature correlation that second predetermined temperature is set at the freezing temperature of reducing agent; For example using under the situation of urea water as reducing agent; Second predetermined temperature is set at-11 ℃, and the 4th predetermined temperature is set at the temperature lower slightly than the gasification temperature of reducing agent, is for example using under the situation of urea water as reducing agent; The 4th predetermined temperature is set at than produces ammonia+40 ° of low slightly temperature, for example is set at+35 °.In addition, the 3rd predetermined temperature is the temperature relevant with the operator cabin temperature, and the setting temperature that it is set at operator cabin 7 for example is set at+25 ℃.
Denitrification catalyst 3, reducer feeding device 4 and reducing agent jar 5 constitute the waste gas cleaning plant of above-mentioned patent documentation 1 said record; Through reducer feeding device 4 in outlet pipe 2, be spray vaporificly be stored in the reducing agent jar 5, be the reducing agents such as light oil of main component with urea water, ammonia spirit or hydrocarbon; In the presence of denitrification catalyst, nitrogen oxide is reduced processing selectively, nitrogen oxides from exhaust gas is resolved into harmless nitrogen G&W through reducing agent.Using under the situation of urea water as reducing agent, utilizing waste gas heat to add water decomposition and generate the ammonia good with reaction of nitrogen oxides property being ejected into urea water in the outlet pipe 2, the ammonia that utilizes this generation reduces processing selectively to nitrogen oxide.The emitted dose of reducing agent in outlet pipe 2 is controlled at the nitrogen oxides from exhaust gas that can remove suitable amount according to exhausted air quantity and EGT and can not produces in the scope of remaining reducing agent.
As shown in Figure 1, heating installation 8 is by constituting with the bottom: in operator cabin 7 be provided with the heat exchanger 8a of the blow-off outlet of warm braw; Add Hot-air fan (heater fan) 8a from what operator cabin 7 sides were observed the back side be arranged on heat exchanger 8a and when driving, to operator cabin 7 in, sprayed warm braw; And be arranged in the operator cabin 7 and the temperature of carrying out heating installation 8 is set or the heating installation controller (omitting diagram) of air quantity setting etc.
Temperature at engine cooling medium is lower than under the situation of first predetermined temperature; Even when the temperature in operator cabin 7 is lower than the 3rd predetermined temperature; In order to prevent ejection cold wind in operator cabin 7; Controller 15 also not to adding Hot-air fan 8b output drive signal e, maintains halted state but will add Hot-air fan 8b.Next; Motor is proceeded warming-up; Temperature at engine cooling medium has reached the stage more than first predetermined temperature; Being lower than the 3rd predetermined temperature with the temperature in the operator cabin 7 is that condition is exported the drive signal e that adds Hot-air fan 8b, in operator cabin 7, sees warm braw off, and the temperature in operator cabin 7 has reached through till operating the value that not shown heating installation controller sets.
As shown in Figure 1, opening and closing device 14 is made up of valve body 14a that opens and closes the first engine cooling medium runner 10 and the actuator 14b such as solenoid that drive this valve body 14a, and the switching position of valve body 14a is controlled through the drive signal f of slave controller 15 outputs.The total amount of engine cooling medium of the first engine cooling medium runner 10 and the second engine cooling medium runner 11 of flowing through is constant all the time.Therefore; During the opening and closing device 14 that in closing the first engine cooling medium runner 10, is provided with; The flow of the engine cooling medium of the second engine cooling medium runner 11 of flowing through is increased; The flow of the first engine cooling medium runner 10 of flowing through when the amount that increases is equivalent to open opening and closing device 14, thus can promptly carry out the heating in the operator cabin 7.
Be higher than first predetermined temperature and the temperature through operator cabin Temperature Detector 9 detected operator cabins 7 is lower than under the situation of the 3rd predetermined temperature in temperature through coolant temperature detector 12 detected engine cooling mediums; Even be lower than under the situation of second predetermined temperature in temperature through reducing agent Temperature Detector 6 detected reducing agents; Controller 15 is also exported the drive signal f that opening and closing device 14 is switched to closed condition; Cut off the importing of engine cooling medium in reducing agent heating equipment 13, thereby the flow of the engine cooling medium of the heat exchanger 8a that imports to heating installation 8 is increased.Thus, when cold, can preferentially heat, therefore, can improve driver's travelling comfort operator cabin 7.In addition; Temperature in operator cabin 7 has reached after the 3rd predetermined temperature; Controller 15 outputs switch to opening and closing device 14 the drive signal f of open mode; Engine cooling medium is imported in the reducing agent heating equipment 13, make the reducing agent that is stored in the reducing agent jar 5 be warmed up to the 4th predetermined temperature.
In addition; Even being lower than first predetermined temperature in the temperature owing to engine cooling medium makes and adds under the situation that Hot-air fan 8b remains halted state; When the temperature of reducing agent is lower than the 4th predetermined temperature; Controller 15 remains open mode with opening and closing device 14, realizes being stored in the intensification of the reducing agent in the reducing agent jar 5.In addition; Temperature in operator cabin 7 has reached the temperature of the 3rd predetermined temperature and reducing agent more than second predetermined temperature and under the situation below the 4th predetermined temperature; Wherein the 4th predetermined temperature is set the temperature higher than this second predetermined temperature for; Controller 15 remains open state with opening and closing device 14, and the reducing agent that is stored in the reducing agent jar 5 is heated up.Thus, can the reducing agent that be stored in the reducing agent jar 5 be remained on the proper temperature below the above gasification temperature of freezing temperature, can carry out the reduction of waste gas expeditiously and handle.Temperature at reducing agent has reached under the situation of the 4th predetermined temperature, and controller 15 switches to closed condition with opening and closing device 14, prevents that the reducing agent that is stored in the reducing agent jar 5 from further heating up.Thus, can prevent to produce stench by reducing agent.
The control step that 15 pairs of controllers that with reference to Fig. 3 mode of execution related to below add Hot-air fan 8b and opening and closing device 14 describes.
When motor 1 starting, controller 15 is also waken up thereupon, thereby 15 pairs of controllers of beginning add the control of Hot-air fan 8b and opening and closing device 14.After engine start; Not shown heating installation controller in driver's operation is arranged at operator cabin 7 is opened (ON) operation to heating installation 8; And during the setting temperature (step S1) of input heating installation 8, next add the drive controlling of Hot-air fan 8b according to this set temperature value.In addition, when engine start, be switched to opening operation and do not changed under the situation of setting temperature of heating installation 8, can omit this step S1 at heating installation 8.
Next transfer to step S2, after the detected temperatures signal c of input coolant temperature detector 12, transfer to step S3, judge whether the temperature of the engine cooling medium of the cooling medium runner 10,11 of flowing through has reached first predetermined temperature.In step S3, do not reach in the temperature that is judged to be engine cooling medium under the situation of first predetermined temperature, transfer to step S4, will add Hot-air fan 8b and keep or switch to and close (OFF) state, and return step S2.Thus, prevented ejection cold wind in operator cabin 7.On the other hand; In step S3; Reached in the temperature that is judged to be engine cooling medium under the situation of first predetermined temperature, transferred to step S5, after the detected temperatures signal b of input operator cabin Temperature Detector 9; Transfer to step S6, judge whether the temperature in the operator cabin 7 is lower than the 3rd predetermined temperature.In step S6, the temperature in being judged to be operator cabin 7 is lower than under the situation of the 3rd predetermined temperature, transfers to step S7, will add Hot-air fan 8b and switch to drive condition, transfers to step S8 then, and opening and closing device 14 is switched to closed condition.
Next, transfer to step S9, judge whether the temperature in the operator cabin 7 has reached the 3rd predetermined temperature.In step S9; Temperature in being judged to be operator cabin 7 has reached under the situation of the 3rd predetermined temperature; Transfer to step S10; After the detected temperatures signal a of input reducing agent Temperature Detector 6, transfer to step S11, judge whether the temperature that is stored in the reducing agent in the reducing agent jar 5 is lower than second predetermined temperature.In step S11; Be lower than in the temperature that is judged to be reducing agent under the situation of second predetermined temperature; Transfer to step S12; Opening and closing device 14 is switched to open mode, engine cooling medium is imported in the reducing agent heating equipment 13 through the first cooling medium runner 10, utilize the heat of engine cooling medium that the reducing agent that is stored in the reducing agent jar 5 is heated.In addition, in step S6, the temperature in being judged to be operator cabin 7 has reached under the situation of the 3rd predetermined temperature, transfers to step S10.In addition; In step S9; Temperature in being judged as operator cabin 7 does not reach under the situation of the 3rd predetermined temperature; And in step S11, be judged to be the temperature that is stored in the reducing agent in the reducing agent jar 5 and be higher than under the situation of second predetermined temperature, return step S8, opening and closing device 14 is maintained closed condition.Thus, the reducing agent that is in frozen state is melted, can utilize reducer feeding device 4 to be ejected in the outlet pipe 2.
Then, transfer to step S13, judge whether the temperature that is stored in the reducing agent in the reducing agent jar 5 has reached the 4th predetermined temperature.In step S13, reached under the situation of the 4th predetermined temperature in the temperature of reducing agent, transfer among the step S14, opening and closing device 14 is switched to closed condition.In step S13, do not reach in the temperature that is judged to be reducing agent under the situation of the 4th predetermined temperature, return step S12, opening and closing device 14 is maintained open mode.Thus, can in gasification that prevents reducing agent and then generation stench, reducing agent be warmed up to predetermined temperature.
Claims (1)
1. one kind is the machinery of power source with the motor, and it possesses: denitrification catalyst, and the exhaust steam passage that it is attached to motor utilizes reducing agent that the nitrogen oxides from exhaust gas in the exhaust steam passage of flowing through is reduced processing selectively; The reducing agent jar, it stores reducing agent; Reducer feeding device, its injection of reducing agent that will be stored in the reducing agent jar is mapped in the exhaust steam passage; The reducing agent Temperature Detector, it detects the temperature that is stored in the reducing agent in the reducing agent jar; The reducing agent heating equipment, it utilizes the heat of engine cooling medium that the reducing agent that is stored in the reducing agent jar is heated; Opening and closing device, it opens and closes the cooling medium runner that engine cooling medium is imported in the reducing agent heating equipment; The coolant temperature detector, its temperature to engine cooling medium detects; Heating installation, its heat of utilizing engine cooling medium is to heating in the operator cabin; The operator cabin Temperature Detector, it detects the temperature in the operator cabin; And controller, the detected temperatures signal of exporting from said each Temperature Detector is imported into this controller, and this controller is controlled the driving of reducer feeding device, opening and closing device and heating installation,
Said is that the machinery of power source is characterised in that with the motor,
Be lower than second predetermined temperature and be lower than under the situation of the 3rd predetermined temperature when the temperature through the detected engine cooling medium of said coolant temperature detector is higher than first predetermined temperature, temperature through the detected reducing agent of said reducing agent Temperature Detector through the temperature in the detected operator cabin of said operator cabin Temperature Detector; Said controller switches to closed condition with said opening and closing device; Thereby cut off the importing of engine cooling medium in said reducing agent heating equipment, increase the flow that imports to the engine cooling medium in the said heating installation.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007175456A JP5028165B2 (en) | 2007-07-03 | 2007-07-03 | Engine powered machine |
| JP175456/2007 | 2007-07-03 | ||
| PCT/JP2008/061995 WO2009005091A1 (en) | 2007-07-03 | 2008-07-02 | Engine powered machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101688455A CN101688455A (en) | 2010-03-31 |
| CN101688455B true CN101688455B (en) | 2012-06-13 |
Family
ID=40226134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880023203.5A Expired - Fee Related CN101688455B (en) | 2007-07-03 | 2008-07-02 | Engine powered machine |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8677737B2 (en) |
| EP (1) | EP2175111B1 (en) |
| JP (1) | JP5028165B2 (en) |
| KR (1) | KR101415481B1 (en) |
| CN (1) | CN101688455B (en) |
| WO (1) | WO2009005091A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065092B (en) * | 2009-06-18 | 2018-05-25 | 康明斯知识产权公司 | For the equipment, system and method for reductant line heating control |
| JP5573351B2 (en) * | 2010-05-17 | 2014-08-20 | いすゞ自動車株式会社 | SCR system |
| JP6195556B2 (en) * | 2011-04-21 | 2017-09-13 | サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Medicinal module for drug delivery device |
| JP2012237232A (en) * | 2011-05-11 | 2012-12-06 | Hitachi Constr Mach Co Ltd | Construction machine |
| US20130026244A1 (en) * | 2011-07-28 | 2013-01-31 | Cnh America Llc | Work vehicle heating system and method |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101688455A (en) | 2010-03-31 |
| US20110011064A1 (en) | 2011-01-20 |
| US8677737B2 (en) | 2014-03-25 |
| JP2009013844A (en) | 2009-01-22 |
| WO2009005091A1 (en) | 2009-01-08 |
| EP2175111A4 (en) | 2010-08-11 |
| KR101415481B1 (en) | 2014-07-04 |
| JP5028165B2 (en) | 2012-09-19 |
| EP2175111A1 (en) | 2010-04-14 |
| EP2175111B1 (en) | 2012-11-21 |
| KR20100057781A (en) | 2010-06-01 |
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